Aspect AS12 frequency

 {
  "scales": [
    {
      "prefix": null,
      "root_scale": null,
      "unit": "UN11",
      "system_dimensions": "DI9",
      "aspects": [
        "AS1",
        "AS12"
      ],
      "conversions": [
        {
          "src_scale_id": "SC11",
          "dst_scale_id": "SC44",
          "aspect_id": "AS1"
        },
        {
          "src_scale_id": "SC11",
          "dst_scale_id": "SC44",
          "aspect_id": "AS12"
        }
      ],
      "casts": [],
      "id": "SC11",
      "ml_name": "#N/A",
      "scale_type": "ratio",
      "is_systematic": null
    },
    {
      "prefix": null,
      "root_scale": null,
      "unit": "UN31",
      "system_dimensions": "DI9",
      "aspects": [
        "AS1",
        "AS12",
        "AS31"
      ],
      "conversions": [
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC11",
          "aspect_id": "AS12"
        },
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC27",
          "aspect_id": "AS31"
        }
      ],
      "casts": [
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC11",
          "src_aspect_id": "AS1",
          "dst_aspect_id": "AS12"
        },
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC11",
          "src_aspect_id": "AS12",
          "dst_aspect_id": "AS12"
        },
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC27",
          "src_aspect_id": "AS1",
          "dst_aspect_id": "AS31"
        },
        {
          "src_scale_id": "SC44",
          "dst_scale_id": "SC27",
          "src_aspect_id": "AS31",
          "dst_aspect_id": "AS31"
        }
      ],
      "id": "SC44",
      "ml_name": "#N/A",
      "scale_type": "ratio",
      "is_systematic": null
    }
  ],
  "id": "AS12",
  "name": "frequency",
  "ml_name": "as_frequency",
  "symbol": null,
  "reference": null
}